We all know this trick, and have seen various versions of it. Rhett Bryson wrote a whole book about the many variations of this very visual effect. The effect has universal appeal (making money magically). And if you show this effect to laypeople, many are still fooled by it.
SS Adams had this nicely made small version in red plastic with wooden knobs and wood and cloth rollers from the 1950's to 1970's. The rollers have a surprisingly high capacity. Later models used plastic and vinyl for the knobs and rollers, and did not roll as far so had less capacity for changes.
This example is probably from the 1970's. It is complete, with original box, instructions and even the three blank pieces of paper that Adams supplied. I would call it near mint, but the box has a penciled price on the face (see photo)
This plastic and wood version that is getting increasingly hard to find, so here is a nice example for a serious collector.
